372 results about "Trimethylolpropane trimethacrylate" patented technology

The present invention provides a novel process for extraction, purification and concentration of polyphenol substances from whole grapes, grape seeds and grape pomace without the need for membrane filtration. Aspects of several embodiments of the novel processes include hot water extraction, a dual pH treatment of the hot water extracts, and the uses of a copolymer of trimethylolpropane trimethacrylate as an adsorbent resin to maximize the concentration and purification of the beneficial polyphenolic substances.

The invention provides a preparation method and application of a nano-modified PTFE and polyester-based composite film for preventing fan blades from icing. The method includes the steps of PTFE film modification, lamination complexing and photo-crosslinked adhesive application. A modifier is prepared from antimony-doped tin oxide nano-crystals, nano-titanium dioxide, nano-silicon carbide, an organic fluorine waterproofing agent and pentaerythritol tri-(3-aziridinyl)-propionate; in lamination complexing, a bonding complexing agent is prepared from 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate, vinyl acetate, ethyl carbamate, alpha-linolenic acid, (2)ethoxylated bisphenol A dimethacrylate, trimethylolpropane triacrylate and benzoyl peroxide; a photo-crosslinked adhesive is prepared from a poly[butyl acrylate-glycidyl methacrylate-n-butoxy methacrylamide]copolymer, vinyl acetate, butyl acrylate, an acrylate derivative, a photoinitiator and dimethylformamide. The method and the composite film solve the non-adhesion problem that a PTFE film can not be pasted on the surfaces of fan blades with an adhesive directly.

The invention discloses a triazine weedicide, and metabolite molecular engram polymer microspheres, a preparation method and an application thereof, which relate to molecular engram polymer microspheres and a preparation method and an application thereof and are used for solving the problem that the conventional molecular engram polymer can only specially absorb one kind of substance and realizing the effect of separating and enriching a plurality of triazine pesticide residues in a sample respectively. The molecular engram polymer microspheres are prepared by the following steps of: dissolving double template molecules and methacrylic acid into acetonitrile; oscillating; adding trimethylolpropane trimethylacrylate and azobisisobutyronitrile; performing ultrasonic treatment, charging nitrogen, removing oxygen and sealing; and heating in a constant-temperature water bath, cooling, grinding, sieving, eluting and drying. The molecular engram polymer microspheres are applied to a filling material of a solid phase extraction column. A product obtained in the invention has the advantages of high specificity, large absorption amount, wide application range, simple method and low cost. High specific separating and enriching characteristics on the triazine weedicide are achieved, the recovery rate is 65-110 percent, and the requirement of multiple residues can be met.

The invention provides a preparation method of a magnetic imprinting composite photocatalyst with good light transmission, belonging to the technical field of preparation of environmental materials. The method comprises using magnetic Fe3O4 nanoparticles as carriers, coating SiO2 insulating layers on surfaces of the nanoparticles, using a sol-gel technology to prepare a TiO2@SiO2@Fe3O4 photocatalyst, using polyethylene glycol to treat surface of the photocatalyst, and using modified TiO2@SiO2@Fe3O4 as a base material, enrofloxacin hydrochloride as a template molecule, methyl methacrylate as an imprinting functional monomer, styrene as a polymerization monomer, trimethylol propane trimethacrylate as a cross-linking agent, azodiisobutyronitrile as an initiator and a mixed solution of dimethyl sulphoxide and water as solvents to prepare the magnetic imprinting composite photocatalyst with the good light transmission. The invention is advantageous in that a magnetic separation characteristic of the photocatalyst enables separation and recovery of samples to be relatively convenient and high-efficiency.

A non-aqueous photopolymerizable inkjet ink, including as a photopolymerizable monomer: (a) ethylene glycol dimethacrylate; and (b) caprolactone-modified dipentaerythritol hexaacrylate or ethylene oxide-modified trimethylolpropane tri-methacrylate, or both thereof, wherein the ink includes the (a) component by 10% by mass to 95% by mass with respect to the entire photopolymerizable monomer, and the ink includes the (b) component by 5% by mass to 90% by mass with respect to the entire photopolymerizable monomer, and wherein the ink does not include a diluting solvent.

A photochromic cured product which has excellent photochromism such as high color density and high fading speed, excellent adhesion to a hard coat and high striping work efficiency. This cured product is obtained by polymerizing and curing a curable composition which comprises (A) a polyfunctional polymerizable monomer such as trimethylolpropane trimethacrylate, (B) a silyl monomer such as gamma-methacryloyloxypropyl trimethoxysilane, (C) another radically polymerizable monomer and (D) a photochromic compound. As for the contents of the polymerizable monomers, the content of the component (A) is 1 to 50 wt %, the content of the component (B) is 0.5 to 20 wt % and the balance consists of the component (C) based on the total of the components (A), (B) and (C). The photochromic compound (D) is contained in an amount of 0.0001 to 10 parts by weight based on 100 parts by weight of the total of the components (A), (B) and (C).

To provide a photopolymerizable inkjet ink, which contains photopolymerizable monomers containing at least one selected from the following compound group (A) compounds of which are negative for skin sensitization, and at least one selected from the following compound group (B) compounds of which are negative for skin sensitization, wherein the compound group (A) is a compound group consisting of caprolactone-modified dipentaerythritol hexaacrylate, polyethoxylated tetramethylol methane tetraacrylate, ethylene oxide-modified bisphenol A diacrylate, caprolactone-modified hydroxy pivalic acid neopentyl glycol diacrylate, polypropylene glycol diacrylate [CH2═CH—CO—(OC3H6)n-OCOCH═CH2 (n≈12)], hydroxyethyl acryl amide, trimethylol propane trimethacrylate, and tricyclodecane dimethanol dimethacrylate, and the compound group (B) is a compound group consisting of ethylene oxide-modified phenolacrylate, isostearyl acrylate, ethylene oxide-modified trimethylol propane trimethacrylate, stearyl methacrylate, and glycerin dimethacrylate.

A photochromic cured product which has excellent photochromism such as high color density and high fading speed, excellent adhesion to a hard coat and high striping work efficiency. This cured product is obtained by polymerizing and curing a curable composition which comprises (A) a polyfunctional polymerizable monomer such as trimethylolpropane trimethacrylate, (B) a silyl monomer such as gamma-methacryloyloxypropyl trimethoxysilane, (C) another radically polymerizable monomer and (D) a photochromic compound. As for the contents of the polymerizable monomers, the content of the component (A) is 1 to 50 wt %, the content of the component (B) is 0.5 to 20 wt % and the balance consists of the component (C) based on the total of the components (A), (B) and (C). The photochromic compound (D) is contained in an amount of 0.0001 to 10 parts by weight based on 100 parts by weight of the total of the components (A), (B) and (C).

The invention relates to a strong-polarity macroporous adsorption resin belonging to the technical field of high-polymer macroporous adsorption resin. The strong-polarity macroporous adsorption resin comprises the following components by weight parts: 10-30 parts of divinyl benzene taken as an oil phase, 10-20 parts of trimethylolpropane triallyl ester, 10-20 parts of trimethylolpropane trimethylacrylate, 20-40 parts of acrylonitrile, 5-10 parts of methyl acrylate, 5-10 parts of styrene, 50-150 parts of pore-foaming agent, 0.5-1 part of 2, 2-azobisisobutyronitrile (AIBN), and 300-500 parts of distilled water taken as an aqueous phase, 5-15 parts of polyvinyl acetate (PVA) and 20-50 parts of NaCl. The strong-polarity macroporous adsorption resin is synthesized and prepared, and high-water-solubility nitrobenzene, phenol and other organic matters can be effectively adsorbed in the process of treating organic wastewater.

The invention belongs to the field of high molecular plastics of power cables and discloses a fire-resistant high temperature-resistant cable material. The cable material is made from the following raw materials in parts by weight: 80 parts of polyvinyl chloride, 10 parts of ethylene-vinyl acetate copolymer, 10 parts of methyl vinyl silicone rubber, 8 parts of GNA type chloroprene rubber, 3 parts of epoxy fatty acid octyl ester, 2 parts of barium stearate, 1 part of aluminium hydroxide, 1 part of compatilizer, 0.5 part of fire retardant, 0.3 part of antioxidant, 0.1 part of dipentamethylenethiuram tetrasulfide and 0.1 part of trimethylolpropane trimethacrylate. The cable material is good in mechanical property, good in fire resistance and high temperature resistance, simple in preparation process and low in raw material cost.

The invention discloses a light-cured three dimensional printing material and a preparation method thereof. The light-cured three dimensional printing material comprises, by mass, 40-45 parts of polyester modified epoxy acrylate, 8-12 parts of cycloaliphatic epoxy resin, 8-10 parts of trihydroxymethylpropyl trimethylacrylate, 16-20 parts of 1,6-hexanediol diacrylate, 2-8 parts of triethyleneglycol divinyl ether, 1.5-2 parts of isopropylthioxanthone, 1.5-2 parts of 2-phenyl-2,2-dimethylamino-1-(4-morpholinylphenyl)-1-butanone, 1.5-2 parts of a reactive tertiary amine co-initiator, 0.5-2.7 parts of 4-isobutylphenyl-4'-methylphenyliodonium hexafluorophosphate, 0.5-2 parts of an anthraquinone derivative, 0.5-2 parts of a promoter and 4-8 parts of a flexibilizer. Shaped parts made by using the light-cured three dimensional printing material have the advantages of low shrinkage, high toughness and high shaping precision.

The invention relates to a method for preparing hydrophilic molecular imprinting microsphere by using ionic liquid as a novel functional monomer by a suspension method. The method is characterized bycomprising the following steps: (1) synthesizing iminazole type ionic liquid with double-bond carboxylic acid by using alkyl imidazole and brominated trialkyl crylic acid; (2) adding a dispersing agent into water and stirring the water until the dispersing agent is fully dissolved; (3) carrying out self-assembly on template molecules and functional monomers; (4) mixing trimethylolpropane trimethacrylate, an initiating agent and a diluent; (5) mixing the three solutions, leading N2 to an obtained mixed solution and then sealing the mixed solution; (6) washing a polymer obtained by the reactionby an organic solvent; and (7) airing the polymer at normal temperature to obtain the hydrophilic molecular imprinting microsphere. The invention has the advantages that the synthesized molecular imprinting polymer has the characteristics of controllable size, strong rigidity, good hydrophilicity and high selectivity and is quite suitable for the enrichment, the separation and the analysis of analogs in foods, biological samples and aquatic environment samples.

The invention discloses a solar cell packaging film. The film is prepared through using 100 parts by weight of an ethylene-octene copolymer, 0.2-1.2 parts by weight of a cross-linking curing agent, 0.2-0.8 parts by weight of a cross-linking curing accelerator, 0.2-0.8 parts by weight of a tackifier and 0.1-0.5 parts by weight of an ultraviolet ray absorber. The cross-linking curing agent is tert-butylperoxy 2-ethylhexyl carbonate, the cross-linking curing accelerator is trimethylolpropane trimethacrylate, the tackifier is 3-methacryloxypropyltrimethoxysilane, and the ultraviolet ray absorber is 2-hydroxy-4-n-octyloxybenzophenone. The solar cell packaging film individually treats the ethylene-octene copolymer as a main material, and selects the most suitable cross-linking curing agent, cross-linking curing accelerator, tackifier and ultraviolet ray absorber, so the solar cell packaging film having the advantages of good bonding property, good ageing resistance and good electric insulation property can be prepared.

The invention discloses fluorosilicone modified acrylic resin as well as a preparation method and an application thereof. The fluorine-silicon modified acrylic resin is prepared from the following components: methacrylate monomers, fluorine-containing acrylate monomers, acrylate-based silicone oil, allyl silicone oil, a polymerized active silane coupling agent, methacrylic acid, hydroxyl-containing active crosslinking monomers, glycidyl methacrylate, trimethylolpropane trimethacrylate, an initiator, a chain transfer agent and a solvent. The fluorine-containing acrylate monomer is composed of aC2-C3 short-chain fluorine-containing alkyl acrylate monomer and a C10-C12 long-chain fluorine-containing alkyl acrylate monomer. The fluorine-silicon modified acrylic resin prepared by the inventionhas the characteristic of high low viscosity, is convenient to construct and use, and reduces the generation of VOC. The coating prepared from the modified acrylic resin has the characteristics of high impact-resistant self-repairing function, icing prevention, low surface energy, hydrophobicity, oleophobicity, stain resistance, high and low temperature resistance and the like.

The invention provides a steel wool-resistant high-hardness ultraviolet (UV) radiation cured coating, and preparation and using methods thereof. The coating comprises the following components in part by weight: 25 to 35 parts of six-functional group aliphatic series polyurethane acrylic resin, 25 to 35 parts of six-functional group silicon modified polyurethane acrylic resin, 5 to 10 parts of trimethylolpropane trimethacrylate, 1 to 2 parts of polyether modified polydimethylsiloxane, 1 to 2 parts of diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, 2 to 6 parts of 1-hydroxycyclohexyl phenyl ketone, and 10 to 22 parts of solvent. The coating is prepared to overcome the defects in the conventional UV cured coating, and is particularly suitable for high-hardness coating which is required by plastic keys such as acrylonitrile-butadiene-styre (ABS) keys, poly carbonate (PC) keys and the like, and can widely applied to coating of various plastic parts of communication, computer and consumer (3C) products, and digital products; and the high requirement of the UV coating is met.

The invention relates to a curable sealant composition broadly comprising a resealable, swellable, reactive sealant and free radical initiator; said resealable, swellable reactive sealant comprises monofunctional monomer(s), multifunctional monomer(s), reactive polymer such as unsaturated styrenic block copolymer, swellable additive, and optional components. The monofunctional monomer is a vinyl ester derivative of versatic acid with C9-C12 carbon atoms, or monoacrylate, monomethacrylate, monoacrylamide, or monomethacrylamide. The multifunctional monomer are di-, tri-, tetra-, and / or penta-functional monomers with vinyl, acrylate, methacrylate, acrylamide, or methacrylamide functionality, such as tricyclodecane dimethanol diacrylate, trimethylolpropane trimethacrylate, 1,3-butylene glycol dimethacrylate or a mixture thereof. The reactive unsaturated polymer is a styrenic block copolymer such as SBS, SIS, S-I / B-S, I-SEBS-I, and mixtures of two or more of these. The swellable additive is selected from saturated block copolymers such as SEBS, SEPS, SEEPS, and I-SEBS-I, or a mixture of these. Free radical initiators are preferably peroxides, although others are acceptable.

A process for preparing microspheres of molecular blot polymer in water medium includes such steps as dissolving ethoxyl cellulose in water while stirring, putting functional monomer in water, mixing trimethoxyl propane, trimethyl acrylate, trigger and diluent together, mixing said three solutions together, introducing nitrogen gas, sealing, stirring at 65-80 deg.C and 300-400 rpm for 6-10 hr, washing with organic solvent, eluting with diluted acid until temp moleculae are removed, washing with water until it shows neutral, and drying in air.

The invention relates to the field of compound extraction and separation purification, in particular to triazole pesticide molecularly imprinted polymer microspheres, a solid-phase extraction column filled with the riazole pesticide molecularly imprinted polymer microspheres and application of solid-phase extraction column. The triazole pesticide molecularly imprinted polymer microspheres are prepared by using triadimefon as the template molecule, methacrylic acid as the functional monomer, trimethylolpropane trimethyl acrylate as the crosslinking agent and azodiisobutyronitrile as initiator to perform reaction in an inert solvent and then removing the template molecule.

The invention belongs to the technical field of preparation of environmental materials, and particularly relates to a preparation method of a surface imprinting CdS compound photocatalyst based on a magnetic carbon material. The preparation method comprises the following steps: coating the surface of Fe3O4 with a C layer on as adopting the Fe3O4 as a carrier, loading CdS to prepare a CdS@C@Fe3O4 compound photocatalyst, and modifying the surface of CdS@C@Fe3O4 by utilizing polyethylene glycol-4000; preparing the magnetic surface imprinting CdS compound photocatalyst by taking the CdS@C@Fe3O4 as a base body, ciprofloxacin as a template molecule, methacrylic acid as a functional monomer, trimethylol-propane trimethacrylate as a cross-linking agent and azobisisobutyronitrile as an initiator by adopting a surface imprinting technology and an ultraviolet light-induced polymerization method. The surface imprinting CdS compound photocatalyst is relatively conveniently, fast and efficiently separated and recovered and has the very high selectivity on photodegradable ciprofloxacin in a binary mixed-phase antibiotic solution. According to the method, photo-induced electrons and a photo-induced cavity of a common CdS photocatalyst are separated to the greatest degree due to the introduction of the C layer, so that the photocatalysis activity of the photocatalyst is enhanced.

The invention discloses a butyronitrile / acrylate rubber sealing gasket for a transformer and a preparation method thereof. The butyronitrile / acrylate rubber sealing gasket is prepared from the following raw materials in parts by weight: 60-80 parts of butadiene-acrylonitrile rubber, 20-40 parts of acrylic rubber, 10-15 parts of ethylene-vinyl acetate copolymer, 4-6 parts of magnesium methacrylate, 2-3 parts of zinc stearate, 25-35 parts of carbon black N550, 0.5-1 part of dicumyl peroxide, 2-3 parts of trimethylolpropane trimethacrylate, 1.5-2.5 parts of triallyl isocyanurate, 5-10 parts of chlorinated paraffin, 10-15 parts of dibutyl phthalate, 4-8 parts of calcined clay, 5-10 parts of nanometer barite powder, 3-6 parts of composite filler, 1-2 parts of anti-aging agent MBZ, 0.5-1 part of accelerant DPTT and 0.5-1 part of accelerant NA-22. The prepared sealing gasket has the performances of excellent mechanical strength, compression resilience, high-temperature ageing resistance, impact resistance, wear resistance and oil resistance, and the service life of the butyronitrile / acrylate rubber sealing gasket is greatly prolonged.

The invention relates to a methacrylate polymer solid phase micro extraction fiber and a preparation method thereof, in particular to a solid phase micro extraction. A fiber is provided with a stainless steel substrate which is a stainless steel wire, and one end of the stainless steel wire is provided with a methacrylate polymer coating. The preparation steps of the invention are that: one end of the stainless steel wire is cleaned with water and dried after being ultrasonically cleaned by an acetone solvent and an ethanol solvent; trimethylolpropane trimethacrylate, toluol and azodiisobutyronitrile are added to the methacrylate in sequence, then ultrasonic blending process and nitrogen flushing and deoxygenizing process are conducted, and then a prepolymerization blended solution is obtained; the prepolymerization blended solution is injected to a glass point sampling capillary by a microliter syringe, then the stainless steel wire is vertically inserted into the central part of the point sampling tube, and the two ends of the point sampling tube are sealed by rubber, then the point sampling tube is placed into an oven for polymerizing and cross linked at a certain temperature. After a polymer solution is solidified at the surface of the fiber, the point sampling tube is soaked in a hydrofluoric acid solution for a certain period, then the glass tube wall is removed, and then the solid phase micro extraction fiber is obtained.

The invention relates to a preparation method of a hydrophobic hierarchical pore solid acid-alkali bifunctional catalyst, and belongs to the technical field of environment functional material preparation. According to the preparation method, alkali-functionalized hydrophobic nano particles (S-NH2) and span80 are taken as the emulsifier to prepare stable pickering high internal phase emulsion, wherein the water phase comprises deionized water and potassium sulfate, the oil phase comprises divinyl benzene, 1-hexene, trihydroxymethyl propane trimethyl acrylate (TMPTMA), and 2,2'-azodiisobutyronitrile (AIBN), then through emulsion polymerization and sulfonation, the hydrophobic hierarchical pore solid acid-alkali bifunctional catalyst (PAPCs) is obtained, and the catalytic effect of the catalyst can be observed in the one-step conversion of cellulose to prepare 5-hydroxymethyl furfural.

The invention discloses a nitrile rubber material for a high-performance engine. The nitrile rubber material comprises the following raw materials in parts by weight: 70-100 parts of nitrile rubber 3604, 20-30 parts of ethylene propylene diene monomer, 4-10 parts of organic silicon modified acrylate, 4-6 parts of polyvinyl chloride resin, 0.8-1.3 parts of stearic acid, 1.5-2.5 parts of paraffin, 40-60 parts of carbon black N550, 15-30 parts of zinc oxide whiskers, 8-12 parts of coupling agent KH-550, 13-17 parts of high styrene, 0.7-1.3 parts of trihydroxymethylaminomethane, 1.5-2.1 parts of dicumyl peroxide, 0.5-0.8 part of N,N-diphenyl-phenylene diamine, 0.3-0.5 part of antiager MB, 0.7-1 part of trimethylol-propane trimethacrylate, 1-2 parts of triallyl isocyanurate, 3-8 parts of magnesium hydrate, 1-3 parts of antimonous oxide, 8-13 parts of diethylene glycol dibenzoate and 0.5-1 part of accelerant TMTD. The nitrile rubber material for the high-performance engine disclosed by the invention is excellent in oil resistance, excellent in high temperature resistance, and good in wear-resisting property, warping strength and breaking performance, can be applied to preparation of various sealing materials inside the engines, and is long in service life.

The invention provides a polyethylene film with tensile strength. The polyethylene film is prepared from the following raw materials by weight: 15-25 parts of low-density polyethylene, 50-70 parts oflinear low-density polyethylene, 5-15 parts of metallocene polyethylene, 10-15 parts of polyethylene terephthalate, 3-7 parts of trimethylolpropane trimethacrylate, 5-12 parts of zinc stearate, 14-18parts of oxidized polyethylene wax, 12-16 parts of ammonium polyphosphate, 3-6 parts of nanometer silica, 1-4 parts of a silane coupling agent, 3-8 parts of glass fibers, 6-10 parts of an antioxidant168 and 0.2-0.4 part of an ultraviolet absorber 328. The polyethylene film with tensile strength has excellent strength, toughness and tensile resistance. The invention also provides a preparation method for the polyethylene film with tensile strength.

The invention discloses a method for preparing 2-methyl-2-propenoic acid 2-ethyl-2-[[(2-methyl-1-oxo-2-propenyl)oxy]methyl]-1,3-propanediyl ester, which comprises the following steps of: (1) putting main materials of trimethylolpropane and methacrylic acid into an esterification reaction container, adding a solvent, adding a catalyst and a polymerization inhibitor A, and performing mixing reaction to obtain a reaction material; (2) controlling the pressure in the esterification reaction container to be -0.04 to -0.08MPa, raising the temperature in the esterification reaction container until reflux flows out, keeping the temperature, and beginning cooling to normal temperature until no reflux flows out or an acid value in reaction solution is detected to be 30-50mgKOH / g; (3) transferring the reaction material to a washing container, adding alkali liquor, controlling the pH value of the reaction material to be 7-8, standing until the reaction material is layered, and discharging wastewater on the lower layer; and (4) transferring the reaction material of which the wastewater is removed to a distillation container, adding a polymerization inhibitor B, vacuumizing the distillation container, and distilling to remove methylbenzene to obtain the product. The product is high in purity, good in color, and high in yield.

The invention relates to a curable sealant composition broadly comprising a resealable, swellable, reactive sealant and free radical initiator; said resealable, swellable reactive sealant comprises monofunctional monomer(s), multifunctional monomer(s), reactive polymer such as unsaturated styrenic block copolymer, swellable additive, and optional components. The monofunctional monomer is a vinyl ester derivative of versatic acid with C9-C12 carbon atoms, or monoacrylate, monomethacrylate, monoacrylamide, or monomethacrylamide. The multifunctional monomer are di-, tri-, tetra-, and / or penta-functional monomers with vinyl, acrylate, methacrylate, acrylamide, or methacrylamide functionality, such as tricyclodecane dimethanol diacrylate, trimethylolpropane trimethacrylate, 1,3-butylene glycol dimethacrylate or a mixture thereof. The reactive unsaturated polymer is a styrenic block copolymer such as SBS, SIS, S-I / B-S, I-SEBS-I, and mixtures of two or more of these. The swellable additive is selected from saturated block copolymers such as SEBS, SEPS, SEEPS, and I-SEBS-I, or a mixture of these. Free radical initiators are preferably peroxides, although others are acceptable.

The invention relates to the technical field of automobile accessories, and discloses automobile braking leather cup rubber, which comprises the following raw materials by weight: 45-55 parts of ethylene-propylene-diene monomer, 45-55 parts of butyronitrile rubber, 15-20 parts of high abrasion carbon black, 15-20 parts of high reinforcing carbon black, 15-20 parts of zinc oxide, 1-5 parts of stearate zinc, 1-5 parts of an antioxidant, 1-5 parts of a curing agent, 1-5 parts of a cross-linking assistant agent and 1-3 parts of a plasticizer. Through simultaneous use of the ethylene-propylene-diene monomer and the butyronitrile rubber, he product low temperature resistance and high temperature resistance are excellent, sealing performance at minus 52 DEG C is good, and oil resistance and cold resistance are good; by simultaneous use of the high reinforcing carbon black and the high abrasion carbon black of the rubber reinforcement system, compression permanent deformation is small, abrasion resistance is good, and service life is long; by use of a peroxide / trimethylolpropane trimethylacrylate vulcanization system, rubber tensile strength is high, rebound elasticity is excellent, and compression permanent deformation is small.

Absorbent hydrogels are formed by reacting a protein meal base, a radical initiator and a polymerizable monomer. Optionally, a cross-linking agent and / or a radical accelerant, such as tetramethylethylenediamine (TMEDA) or sodium bisulfite (NaHSO3), is also added to the mixture. Preferably, the radical initiator is ammonium persulfate (APS) or potassium persulfate (KPS), and the cross-linking agent is preferably trifunctional trimethylolpropane trimethacrylate (TMPTMA) or methylene bis acrylamide (MBA). The polymerizable monomer is preferably acrylic acid, or a combination of acrylic acid and acrylamide. The as-formed hydrogel is washed in order to extract non-reactant components from the gel and then dried. The resultant absorbent and superabsorbent hydrogels have high water uptake ratios, and can be utilized for a variety of applications.

The invention discloses a nano calcium carbonate sound-absorbing light-weight partition board and a manufacturing method thereof. The partition board is characterized by being manufactured from following raw materials, by weight, 10-15 parts of cement, 14-18 parts of an oligomer, 17-20 parts of fly ash, 13-16 parts of natural zeolite, 11-14 parts of kaolin, 1-2 parts of dicumyl peroxide, 9-12 parts of industrial bone glue, 0.3-0.8 parts of sodium hydroxide, 1.2-3.2 parts of trimethylolpropane trimethacrylate, 10-14 parts of nano calcium carbonate, 1-2 parts of zinc sulfate, 17-19 parts of barium carbonate residue, 17-20 parts of sawdust, 4-7 parts of hydrophilic silicon oil, 3-6 parts of additives and a proper amount of water. The raw materials are abundant. The partition board employs waste materials and can reduce pollution, thereby reducing the cost. In addition, the partition board can adsorption harmful gas and particles in air, is light in weight, is good in anti-shock performance and thermal-insulating and sound-insulating effect, can be nailed, sawed and planed, and can be widely employed for preparing an inner partition board of a nonbearing wall in building industry.